anatomyphysiologyblog - MCQs inward ANATOMY: THYROID GLAND
In this post, I convey posted xv MCQs related to anatomy of thyroid gland.The keys to these enquiry volition endure posted separately amongst explanation for some.
1. Knowledge of place of the thyroid gland is of import to perform the physical examination. It is located anteriorly at the lower role of cervix inward relation to trachea together with lies deep to the anterior triangle cervix muscles.
What is the vertebral grade that the thyroid gland is situated inward the neck?
a) C5, C6 together with C7
b) C5, C6, C7 together with T1
c) C6, C7 together with T1
d) C6, C7, T1 together with T2
2. The thyroid consists of 2 lobes connected past times a narrow isthmus which is related to tracheal ring.
Which tracheal rings are by together with large related to isthmus?
a) 1st together with 2nd
b) 1st, 2nd together with 3rd
c) 2nd together with 3rd
d) 2nd , 3rd together with 4th
3. Thyroid is covered amongst the fibrous truthful capsule which sends septa inward together with split upward the organs into lobules. External to the fibrous capsule, it is covered past times unloose connection tissue sheath (false capsule) which is derived from 1 of the layers of cervical fascia.
Which layer of cervical fascia forms the imitation capsule of thyroid gland?
a) Investing layer
b) Pretracheal layer
c) Prevertebral layer
4. Thyroid gland is located deep inward the anterior cervix triangle.
It lies deep to which muscles?
a) Digastric muscles
b) Omohyoid muscles
c) Sternothyroid together with Sternohyoid
d) Thyrohyoid together with myelohyoid
5. The evolution of thyroid gland is marked past times a depression called foramen cecum inward the flooring of the primitive pharynx. The foramen caecum gives ascent to a diverticulum which afterwards elongates together with descends anterior to the hyoid os together with thyroid cartilage to assume the adult position.
What is this diverticulum called?
a) Hyoglossal duct
b) Laryngeal diverticulum
c) Respiratory diverticulum
d) Thyroglossal duct
6. Thyroid gland is highly vascular together with is supplied past times branches of a yoke of superior together with inferior thyroid arteries which prevarication betwixt the fibrous together with unloose connection tissue layers.
Which artery by together with large gives ascent to the superior thyroid artery?
a) External carotid artery
b) Internal carotid artery
c) Brachiocephalic trunk
d) Thyrocervical trunk
7. Which artery by together with large gives ascent to inferior thyroid artery?
a) External carotid artery
b) Internal carotid artery
c) Brachiocephalic trunk
d) Thyrocervical trunk
8. Thyroid ima artery is introduce inward around 10% people together with by together with large arises from brachiocephalic torso (or likewise from other vessels similar arch of aorta, mutual carotid, subclavian together with internal thoracic arteries). This artery runs inward the midline anterior to the trachea together with ascend upward towards the gland.
Which role of the gland is supplied past times this artery?
a) Apex
b) Base
c) Isthmus
d) Lateral surfaces
9. Thyroid gland is drained past times iii pairs of veins, superior, oculus together with inferior thyroid veins which arise from thyroid venous plexus. The oculus thyroid vein has no corresponding artery together with accompanies inferior thyroid artery whereas the inferior thyroid veins runs independently.
Where does the superior thyroid vein drain?
a) Brachiocephalic vein
b) External jugular vein
c) Internal Jugular vein
d) Subclavian vein
10. Where does the oculus thyroid vein drain?
a) Brachiocephalic vein
b) External jugular vein
c) Internal Jugular vein
d) Subclavian vein
11. Where does the inferior thyroid artery drain?
a) Brachiocephalic vein
b) External jugular vein
c) Internal Jugular vein
d) Subclavian vein
12. Superior thyroid artery descends to the superior pole (or apex) of the thyroid gland. In its initial course, the artery accompanies a nervus which when approaching the apex passes deep to the gland.
Which is this nervus related amongst the superior thyroid artery?
a) External laryngeal nerve
b) Internal laryngeal nerve
c) Recurrent laryngeal nerve
d) Superior laryngeal nerve
13. Given this unopen human relationship of superior thyroid artery amongst external laryngeal nervus at its initial course of pedagogy (as mentioned inward a higher house inward question# 12), where produce you lot similar to ligate the artery during the surgical removal of thyroid gland (thyroidectomy)?
a) Away from the apex
b) Close to the apex
c) It does non affair
14. Inferior thyroid artery after arising from the thyrocervical torso runs inward a higher house together with medially towards the inferior pole (or base) of the thyroid gland. Near the base of operations of the gland, the artery is closely related amongst a nerve.
Which is this nervus related amongst the inferior thyroid artery unopen to the base?
a) External laryngeal nerve
b) Internal laryngeal nerve
c) Recurrent laryngeal nerve
d) Superior laryngeal nerve
15. Given this unopen human relationship of inferior thyroid artery amongst the nervus (as mentioned inward enquiry # 14), where produce you lot similar to ligate the artery during the surgical removal of thyroid gland (thyroidectomy)?
a) Away from the apex
b) Close to the apex
c) It does non affair